Glossary term
Vendor Data Requirements List (VDRL)
In engineering procurement, the list of documents a vendor must deliver for an equipment order, with when each is due and whether the buyer must review it.
Last reviewed by the OdysseyGPT team
What it is
In engineering procurement, a vendor data requirements list (VDRL) lists every document an equipment vendor must deliver, such as drawings, calculations, test plans and certificates, with due dates and the buyer's review requirement for each.
Key Takeaways
- Always spell out the term: in engineering it means vendor data requirements list.
- It is part of the scope of supply, not an afterthought.
- Missing or late documents can be deviations.
Why it matters
A vendor data requirements list (VDRL) is attached to or referenced by the material requisition. It lists every document the equipment vendor must submit, such as general arrangement drawings, datasheets, calculations, the inspection and test plan, material certificates, manuals and the final data book, together with the due date for each and whether it is for information or for the buyer's review and approval. The same list goes by other names, such as VDDR or SDRL. Bidders should check the vendor data requirements list at bid stage, because documents they cannot provide, or cannot provide in time, are deviations too. In this context the abbreviation has nothing to do with the medical laboratory test that shares the same letters.
How OdysseyGPT uses it
OdysseyGPT can pull the document requirements out of the tender package with their sources cited, so an engineer can check them against what the manufacturer normally supplies. Document control after award is usually handled in dedicated document-control systems, not in OdysseyGPT.
Evaluation questions
Who issues it?
The EPC contractor or owner, as part of or alongside the material requisition.
Is the data book on the list?
Usually yes. The final manufacturing data book or record book is one of the last items delivered.
Frequently asked questions
What does a vendor data requirements list include?
Each required vendor document, its due date (often counted from order), and whether it is for information or for the buyer's review and approval.
Why check the vendor data requirements list at bid stage?
Documents you cannot supply, or cannot supply on time, are deviations and should be declared or priced in the offer.
References
What is vendor documentation
Project Materials
A closer look at the VDR
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